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Talking to memory: Inside the Intel 8088 processor's bus interface state machine
In 1979, Intel introduced the 8088 microprocessor, a variant of the 16-bit 8086 processor. IBM's decision to use the 8088 processor in the I...
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The latest blog posts to take off on Hacker News. 4,806 posts.
Hardware & Electronics
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Is it okay to daisy chain a UPS?
Is it OK to daisy chain UPSs? Let’s look at a few reasons this is a common question and alternative approaches that can better address the target.
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How to improve the RISC-V specification
My main project is to create an executable spec of the Intel Architecture but, every now and then, I get to take a broader look at ISA specifications and think about the strengths and weaknesses of other ISA specs: what makes them work well; and what techniques they could borrow from other specifications. Earlier this…
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Implementing Neural Networks on a "10-cent" RISC-V MCU
I have been meaning for a while to establish a setup to implement neural network based algorithms on smaller microcontrollers. After reviewing existing solutions, I felt there is no solution that I…
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Meta Horizon OS
Today we’re taking the next step toward our vision for a more open computing platform for the metaverse. We’re opening up the operating system powering our Meta Quest devices to third-party hardware makers, giving more choice to consumers and a larger ecosystem for developers to build for. We’re working with leading…
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Bottle Plotter
Bottle Plotter BottlePlotter.cz I have noticed that, it is quite common in group of small wine producers, that they don't use bottle la...
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Inside the Super Nintendo cartridges
One of the remarkable characteristics of the Super Nintendo was the ability for game cartridges (cart) to pack more than instructions and assets into ROM chips. If we open and look at the PCBs, we can find inside things like the CIC copy protection chip, SRAM, and even "enhancement processors".
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Halo 2 in HD: Pushing the Original Xbox to the Limit
Everything I went through to add support for HD resolutions to Halo 2 on the Original Xbox. From patching the game's rendering engine and memory allocator, to hot patching the Xbox OS, to overclocking the GPU and running performance benchmarks. This post covers how I pushed the game and console to t
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Goldene: A single atom layer of gold
For the first time, scientists have managed to create sheets of gold only a single atom layer thick. According to the researchers from LiU this has given the gold new properties that can make it suitable for use in various applications.
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An electric new era for Atlas
Our electric Atlas robot is here. With decades of robotics R&D and practical expertise, Boston Dynamics is tackling the next commercial frontier.
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Humane AI – Pico Laser Projection – AI Twist on an Old Scam (2023)
Humane AI (Humane, hereafter) combines the mid-2010s failed concept of using a laser projector to project on the body with the early 2000s failed projector phone (something I wrote about in 2013), …
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usbredir: A protocol for sending USB device traffic over a network connection
usbredir is the name of a network protocol for sending USB device traffic over a network connection. It is also the name of the software package offering a parsing library, a usbredirhost library and several utilities implementing this protocol.
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6th generation x86 CPU Comparisons
Paul Hsieh's 6th generation x86 CPU comparision page including K6, P-II and 6x86MX geared towards the high performance software developer audience
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Weird monitor bugs people sent me in the last 5 years (2022)
I develop 🌕 Lunar, a macOS app for getting intelligent adaptive brightness on external monitors and controlling every aspect of your monitor using DDC and other obscure protocols. I get tons of email about Lunar, especially after it became my full time “job” in 2021. A lot of those emails complain about Lunar bugs…
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Why good external SSDs are faster with Apple Silicon
Why an Intel Mac’s up to 40 Gb/s from Thunderbolt 3 is less than an Apple silicon Mac’s up to 40 Gb/s from USB4, and how you can benefit from it.
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How to Determine the Error of an Air Quality Sensor?
How to calculate sensor error, compare measurements, and use metrics like RMSE to judge air quality sensor performance.
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Meta MTIA v2 – Meta Training and Inference Accelerator
We are sharing details of our next generation chip in our Meta Training and Inference Accelerator (MTIA) family. MTIA is a long-term bet to provide the most efficient architecture for Meta’s unique workloads.
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Intel Gaudi 3 AI Accelerator
Intel Gaudi 3 AI accelerator brings global enterprises choice for generative AI, building on the performance and scalability of its Gaudi 2 predecessor.
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I made a thing to help you make a thing out of a keypad
I do a lot of electronics projects in my spare time, and I tend to try to make reusable parts to save myself effort in the future. Because I have to order ingredients in certain quantities, I often wind up with more than I need for my project.
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Google Axion Processors – Arm-based CPUs designed for the data center
The custom Axion Arm-based processor is designed for general-purpose workloads like web and app servers, databases, analytics, CPU-based AI, and more.
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An IRC client in your motherboard
I made a graphical IRC client that runs in UEFI. It’s written in Rust and leverages the GUI toolkit and TrueType renderer that I wrote for axle’s userspace. I was able to develop it thanks to the vmnet network backend that I implemented for QEMU. You can connect to an IRC server, chat and read messages, all from the…
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Homemade 6 GHz pulse compression radar
Designing a modern pulse compression radar that uses digital signal processing.
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Receive push notifications from your rice cooker
I have a lovely, and reasonably priced, Mini Panda Rice Cooker. It does not have any SmartHome features. You put in water and rice, press a button, it cooks rice. Nice! The only problem is - I don't know how long the rice will take to cook. It uses "Fuzzy Logic" to work out exactly how much heat and time is needed for…
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Error Handling in Baby Toys
Electrical baby toys are interesting to disassemble and look at how it’s made. Not up to the …
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The Hearts of the Super Nintendo
When I start studying a vintage system, the first thing I like to do is understand how its components work together at the hardware level [1] .
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An unusual 7400-series chip implemented with a gate array
When I look inside a chip from the popular 7400 series, I know what to expect: a fairly simple die, implemented in a straightforward, cost-e...
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Running a Raspberry Pi with a read-only root filesystem
While there are downsides, using a read-only root filesystem will dramatically increase your Pi SD card's lifetime.